Unknown; possibly a modern coinage or surname variant.
The exact etymology of Cauy is unclear. It is often cited as a modern American invention, possibly inspired by the name of professional rodeo cowboy Cauy Beutler, or as a phonetic variation of the surname McCoy. Its usage is extremely rare and primarily found in the United States.
Fewer than 5 boys were named Cauy in 2025.
Professional rodeo stock contractor and former competitor
US births per 5-year period, 1990–present (SSA data).
